FR2674739A1 - Ultrasound device for cleaning floors - Google Patents

Abstract

Ultrasound device (1) for cleaning floors (2), wherein a liquid (5) acting as the coupling fluid is present between an ultrasound emitter (4) and the floor (2) to be cleaned, while the ultrasound emitter (4) is situated inside a chamber (3) which, as long as the ultrasound device is on, is open to the floor, its lateral walls reaching close to the floor (2), the device being characterised in that the edges nearest the floor (2) of the lateral walls of the chamber (3) comprise gas cushions (7, 7') which, as long as the ultrasound device (1) is on, almost completely prevent the coupling fluid (5) from escaping around the sides. … …

Description

94 oedwe qsa a 6 e Ldnoo op apln Lt np quewe Lno 3 a 9 l enb: Le: e L suep

  3 uop ap sa 91 uo LU a Au ^ u; L 8 p jneool al Àquema Leiae L addeq, 3 ss au 5 ú a 6 e Ldnoo ap ap Ln Lj e L anb quewa Le Do 4 enbseid 4 ueqogedue suos-e J 4 Ln ej L-Lsods Lp np ueawauuo-ouo 4 ea L uepuad Lnb ze 6 ap aqenoo es Je L Led sep 4 ue 3 uasaid 'uossie D np Sa Le Ja 4 e LS Loied sep * Los Lt s $ JA soeuino 4' saqkw Lwpxa sa L anb tee L, ed uo L 3 ue Au Li L3 ue A Lnssuos Ot -el, Ln ej L, Lsods Lp un oa ^ e: u Laq e: sa lnq a 3 Àxne 6 e 4 ue Ae Too D unp 4 ae Ldwts UO Lq 3 ni 4 s Uoz aun i Lo Ae ua A Lop Z-Se L La 3 gsap wnq apda e sajqweqo sap as LL qn UOL t S '3 lnppi sql ;; LOS a 6 e Ldnoo op apkn L: np Leiaqe L 34 uema Lnoo eL Lsnba L suep a 354 l Dd ad q np, Lk Lsods Lp SZ

  a Janbtpu, cp Duop esodold es uo Lque Au L, -

  axis Ldto uo L; ejn 6 L 4 UOZ aun JLO Ae 4 U 8 ^ Lop * uoss Leo np Jne L Jaexa L q 3 u Anno J as t Lnb saplwnq ep LA e saquemqo se L no pue, 6 4 u 8 ma AL Ie LOJ e:, Lnj op xne; a a 4 Lns i ua LI 'e 3 Lnsuanb oz aei Ldse% seau; a uosste D np sae Le J e LS Loied se L snos Jassed, L Op' neai L ap a Ld Uaxe Jed ga Les a 6 e Ldno 3 ap -4 Lnpo Jd np j Lje; o 3 el Je 3 'enb L 4 e Jd UOL: e S Ll; n Jna L 4 uepuad 9: 4 Leq 3 ue 3 sp seualLqoid se Ae J 6 sp iesod ap 4 uae Lue Auoou L inod qno; 4 ue Ae Zuo snuuoo s L 3, sods Lp qi s GO * ffl 19 EZ-V-3 G "ii <wnz) op a L jed a Ldwsxe jed '5 adj a D ap suos-e;: ln ej 4 L 1 sods Lp un: _euuoo uo Àlos np 9 sq Lw Lxo Jd e, nbsn C 4 uepual:, s saledea; e I s Loied sel quop qe l OS a 903 qia Ano 4 sa 'suos -e J 1 Ln e 4134 Lsod S Lp np quavmuuo Lq 3 uo s L quepuad 'Lnb 01 uoss Leo un suep -4 ue Ano J 3 es suos-e J 34 Ln e jnaawateàL 3, a Je; oleu e Los ae L 4 a suos-ejq Ln, p inaqame un ar 1 ua 4 ue Anoil es a 6 e Ldnoo sp p Ln L sp 34 ue A Jes ep Lnb LL un 4 s L Os S 8 p 86 e Ao 04 qu sl inod suos-e J 4 Ln q L; Lsodstp one in Jaouo D uotqua Au L aqusaid el S SLOS -ap s WU 6-e Ao 33 eu a L Ànod-suos-eJ Ln e LLsod-skâ I by a so-called gas layer bearing One can use in particular as bearing gas, an air cushion This gas layer bearing also serves as a sliding support for the device, relative to the ground, which in some cases makes it possible to dispense with casters

separate or similar.

  Other details and advantages of the invention

  emerge from the detailed description which follows

  Embodiments of the invention are described by way of nonlimiting examples in the accompanying drawings. Figure 1 shows a first embodiment of the invention and Figure 2 shows another variant of

production.

  In the figures, the reference 1 designates the ultrasonic device for cleaning the floors and the reference 2, the floor The ultrasonic device 1 essentially consists of a box 3 in which is placed an ultrasonic transmitter sounds 4 in front of which is the liquid 5 serving as coupling fluid The part 6, floor side, of the box 3, is open during the cleaning operation The side walls of the box 3 have, on their lower side turned towards the floor 2 , gas layer bearings 7 In the present embodiment, it has been placed next to the bearing 7, on one side 8 of the casing 3, another gas layer bearing 7 'Between the bearings 7 and 7' there is a cavity 9 which performs the function

of a wet vacuum chamber.

  The gas layer bearings 7 and 7 ′ are connected by pipes 10, 11 and 12 to a pump 13 which pumps air under high pressure to the bearings at

gas layer 7 and 7 '.

  The front faces of the bearings 7 and 7 ′ may be closed surfaces made of metal, porous sintered material or flexible molded plastic and their shape and their design are adapted in each case to the requirements resulting from the height of the slot. air between the bottom side of the box and the floor, the water filling height, the system weight, the compressed air pressure and the

soil shape.

  The dirty coupling fluid 5 is sucked through a suction tube 14, using a pump

  and is sent to a filter 17, through a pipe 16.

  From the filter 17 retaining the dirt, the purified coupling fluid can be returned to the casing 3, by an inlet tube 18 With the aid of a differential pressure measuring device, it is possible to measure the pressure differential between pipes 16 and 18, which reflects the degree

filter clogging 17.

  To compensate for any leaks from the ultrasonic device during its operation, it is possible to pump into the box, coupling fluid 9, that is to say for example fresh water,

  by a valve 20 and pipes 21, 22.

  The coupling fluid possibly arriving in the wet vacuum chamber 9 can also be sent to the filter 17, by a pipe 23 and a pump 24, then be recycled to the box, in the form of a

filtered coupling fluid.

  FIG. 2 represents another exemplary embodiment of the invention in which the box 3 ′ comprises, on the ground side, a partition 3 "The upper part of the box serves as a reservoir for the coupling fluid and is connected with the part on the ground side, by valves 27, 28 The suction tube 14 'is, in this embodiment, not in the upper part of the box, but in the part facing

floor.

  To transport the entire device, the ground side part 6 ′ of the box 3 ′ is empty. The reservoir ′ can be filled since the tap 28 is closed. After the ultrasonic device 3 has been placed on the floor 2, the air cushions 25 (see FIG. 1) are formed and the suction pumps 15 and 24 are switched on. By opening the valve 28, the useful volume 6 'is filled with water until the float valve 27 is closed by the water level The height of the float 26 is such that the ultrasonic transmitter 4

  is surrounded with certainty by the coupling fluid.

  The dirty water flows through the annular slot 29 in the annular channel 14 'and is sucked

at this location by the pump 15.

  To turn off the ultra-

  sounds, the valve 28 is closed while the suction pump 15 remains switched on. As a result, the useful volume 6 ′ is drained to a film height.

  residual water which is determined by slot 29.

  When the pump 15 no longer draws water, the device

can be lifted off the ground.

Claims (3)

  1 Ultrasonic device (1) for cleaning floors (2), a liquid (5) serving as a coupling fluid located between an ultrasonic transmitter (4) and the floor (2) to be cleaned and the ultrasonic transmitter (4) located in a box (3) which, during the operation of the ultrasonic device, is open on the ground side and the side walls of which extend close to the ground (2 ), characterized in that the ends, facing towards the ground (2), of the side walls of the box (3) have gas-layer bearings (7, 7 ') which, during the operation of the ultrasonic device ( 1), almost completely prevent the coupling fluid (5) from escaping laterally.  2 ultrasonic device according to claim 1, characterized in that there are provided two gas layer bearings (7, 7 ') arranged one behind the other in the direction of movement of the ultrasonic device (1) and in that the space between the gas layer bearings is configured as a wet vacuum (9).   3 Ultrasonic device according to one   any of claims 1 or 2, characterized in   that there is provided in the box (3), a water inlet tube (18) which communicates with a suction tube (14) also placed in the box (3), by   through a filter (17) and a pump (15).